Enum rustc_middle::thir::StmtKind

source · [−]

pub enum StmtKind<'tcx> {
    Expr {
        scope: Scope,
        expr: ExprId,
    },
    Let {
        remainder_scope: Scope,
        init_scope: Scope,
        pattern: Pat<'tcx>,
        initializer: Option<ExprId>,
        lint_level: LintLevel,
    },
}

Variants

`Expr`

Fields

scope: Scope

The scope for this statement; may be used as lifetime of temporaries.

expr: ExprId

The expression being evaluated in this statement.

An expression with a trailing semicolon.

`Let`

Fields

remainder_scope: Scope

The scope for variables bound in this let; it covers this and all the remaining statements in the block.

init_scope: Scope

The scope for the initialization itself; might be used as lifetime of temporaries.

pattern: Pat<'tcx>

let <PAT> = ...

If a type annotation is included, it is added as an ascription pattern.

initializer: Option<ExprId>

let pat: ty = <INIT>

lint_level: LintLevel

The lint level for this let statement.

A let binding.

Trait Implementations

source

impl<'tcx> Clone for StmtKind<'tcx>

source

fn clone(&self) -> StmtKind<'tcx>

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

source

impl<'tcx> Debug for StmtKind<'tcx>

source

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

source

impl<'tcx, 'ctx> HashStable<StableHashingContext<'ctx>> for StmtKind<'tcx>

source

fn hash_stable(
 &self,
 hcx: &mut StableHashingContext<'ctx>,
 __hasher: &mut StableHasher
)

Auto Trait Implementations

impl<'tcx> !RefUnwindSafe for StmtKind<'tcx>

impl<'tcx> !Send for StmtKind<'tcx>

impl<'tcx> !Sync for StmtKind<'tcx>

impl<'tcx> Unpin for StmtKind<'tcx>

impl<'tcx> !UnwindSafe for StmtKind<'tcx>

Blanket Implementations

source

impl<T> Any for T where
T: 'static + ?Sized,

source

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

source

impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

source

impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

source

impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,

source

default fn fingerprint_style() -> FingerprintStyle

source

default fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint

This method turns the parameters of a DepNodeConstructor into an opaque Fingerprint to be used in DepNode. Not all DepNodeParams support being turned into a Fingerprint (they don’t need to if the corresponding DepNode is anonymous). Read more

source

default fn to_debug_str(&self, Ctxt) -> String

source

default fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>

This method tries to recover the query key from the given DepNode, something which is needed when forcing DepNodes during red-green evaluation. The query system will only call this method if fingerprint_style() is not FingerprintStyle::Opaque. It is always valid to return None here, in which case incremental compilation will treat the query as having changed instead of forcing it. Read more

source

impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

source

impl<T, R> InternIteratorElement<T, R> for T

type Output = R

source

fn intern_with<I, F>(
 iter: I,
 f: F
) -> <T as InternIteratorElement<T, R>>::Output where
 I: Iterator<Item = T>,
 F: for<'_> FnOnce(&[T]) -> R,

source

impl<T, U> Into for T where
U: From<T>,

const: unstable · source

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

source

impl<T> MaybeResult<T> for T

impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

source

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

source

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

source

impl<T, U> TryFrom for T where
U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

Performs the conversion.

source

impl<T, U> TryInto for T where
U: TryFrom<T>,

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

fn try_into(self) -> Result<U, >::Error>

Performs the conversion.

source

impl<'a, T> Captures<'a> for T where
T: ?Sized,

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.

Size: 56 bytes

Size for each variant:

Expr: 12 bytes
Let: 52 bytes

Enum rustc_middle::thir::StmtKind

Variants

Expr

Fields

Let

Fields

Trait Implementations

impl<'tcx> Clone for StmtKind<'tcx>

fn clone(&self) -> StmtKind<'tcx>

fn clone_from(&mut self, source: &Self)

impl<'tcx> Debug for StmtKind<'tcx>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for StmtKind<'tcx>

fn hash_stable( &self, __hcx: &mut StableHashingContext<'__ctx>, __hasher: &mut StableHasher)

Auto Trait Implementations

impl<'tcx> !RefUnwindSafe for StmtKind<'tcx>

impl<'tcx> !Send for StmtKind<'tcx>

impl<'tcx> !Sync for StmtKind<'tcx>

impl<'tcx> Unpin for StmtKind<'tcx>

impl<'tcx> !UnwindSafe for StmtKind<'tcx>

Blanket Implementations

impl<T> Any for T where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

impl<T> Borrow<T> for T where T: ?Sized,

fn borrow(&self) -> &T

impl<T> BorrowMut<T> for T where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

impl<Ctxt, T> DepNodeParams<Ctxt> for T where Ctxt: DepContext, T: for<'a> HashStable<StableHashingContext<'a>> + Debug,

default fn fingerprint_style() -> FingerprintStyle

default fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint

default fn to_debug_str(&self, Ctxt) -> String

default fn recover(Ctxt, &DepNode<<Ctxt as DepContext>::DepKind>) -> Option<T>

impl<T> From<T> for T

fn from(t: T) -> T

impl<T, R> InternIteratorElement<T, R> for T

type Output = R

fn intern_with<I, F>( iter: I, f: F) -> <T as InternIteratorElement<T, R>>::Output where I: Iterator<Item = T>, F: for<'_> FnOnce(&[T]) -> R,

impl<T, U> Into<U> for T where U: From<T>,

fn into(self) -> U

impl<T> MaybeResult<T> for T

type Error = !

fn from(Result<T, <T as MaybeResult<T>>::Error>) -> T

fn to_result(self) -> Result<T, <T as MaybeResult<T>>::Error>

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

impl<T, U> TryFrom<U> for T where U: Into<T>,

type Error = Infallible

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

impl<T, U> TryInto<U> for T where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

impl<'a, T> Captures<'a> for T where T: ?Sized,

Layout

`Expr`

`Let`

impl<'tcx, 'ctx> HashStable<StableHashingContext<'ctx>> for StmtKind<'tcx>

fn hash_stable(
&self,
hcx: &mut StableHashingContext<'ctx>,
__hasher: &mut StableHasher
)

impl<T> Any for T where
T: 'static + ?Sized,

impl<T> Borrow<T> for T where
T: ?Sized,

impl<T> BorrowMut<T> for T where
T: ?Sized,

impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,

fn intern_with<I, F>(
iter: I,
f: F
) -> <T as InternIteratorElement<T, R>>::Output where
I: Iterator<Item = T>,
F: for<'_> FnOnce(&[T]) -> R,

impl<T, U> Into<U> for T where
U: From<T>,

impl<T> ToOwned for T where
T: Clone,

impl<T, U> TryFrom<U> for T where
U: Into<T>,

impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

impl<'a, T> Captures<'a> for T where
T: ?Sized,